Territory



(No Model.)

0. P. NILES. APPARATUS FOR OPENING AND CLOSING DOORS OR GATES.

Patented Dec. 6, 1887.

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UNITED STATES PATENT OFFICE.

CLEVELAND P. NILES, OF BIG STONE CITY, DAKOTA TERRITORY, ASSIGNOR OFONE-HALF TO ALBERT W. MOVIUS, OF SAME PLACE.

APPARATUS FOR OPENING AND CLOSING DOORS OR GATES.

SPECIFICATION forming part of Letters Patent No. 374,552, dated December6, 1887. 7

Application filed June 23,1887. Serial No. 242,332. (No model.)

T at whom. it may concern.-

Be it known that I, CLEVELAND P. NILEs, a citizen of the United States,residing atBig Stone City, in the county of Grant, Dakota Territory,have invented a new and useful Improvement in Apparatus for Opening andClosing Doors or Gates, of which the following is a specification.

My invention relates to an improvement in IO apparatus for opening andclosing doors or gates; and it consists in the peculiar construction andcombination of devices that will be more fully set forth hereinafter,and particularly pointed out in the claim.

In the drawings, Figure 1 is an elevation of a gate provided with myimproved opening and closing apparatus. Fig. 2 is a vertical sectionalview of the same, taken on the line w w of Fig. 3. Fig. 3 is anelevation of the reverse side of the gate from that shown in Fig. 1.

A represents a pair of vertical gate-posts. B represents a horizontalbar connecting the said posts near their upper ends; and 0 repisfulcrumed to the upper end of each post.

D represents a bar which extends from one post A to the other, and hasits ends passed through vertical slots E, with which the posts D isfulcrumed to the center of the bar B by a bolt, F.

G represents a metallic rail, which is bolted to one side of the bar D,and projects above the upper edge thereof, thereby forming a raisedflange.

H represents the gate, which may be of any preferred construction.

. I represents a U-shaped hanger, the cenportion of the gate, near theupper end thereof, by a bolt or pin, a. To the upper ends of theverticalarms of the hanger are journaled friction-rollers K, providedwith peripheral 5 grooves that fit on the rail G and thereby susresentsa pair of operating-levers,one of which are provided. The centralportion of this bartral portion of which is pivoted to the central.

pend the gate from the bar D. By this means the gate iscaus'ed by itsgravity always to assume a vertical position. The oscillation of thegate on the pivot a is confined within proper limits by keepers b, asshown. The outer ends of the said bar D are connected to the outer endsof the levers O, and to the inner ends of the said levers are connectedropes or chains L, to the lower ends of which are attachedcounter-weights M.

The operation of my invention is as follows: By moving one ofthe leversO the bar'D may be inclined so as to cause the gate by its own gravityto travel downward on the bar and be thereby either opened or closed.The weights M, which are connected to the levers (l, counterpoise thegate and thereby render it easy to tilt the supporting-bar D. Byconn'ecting operating-ropes to the levers O and extending the same onsuitable pulleys to points on opposite sides of the gateway the gate maybe opened or closed by persons in vehicles or on horseback without thenecessity of dismounting.

Having thus described my invention, I 7) claim- The combination of thepivoted bar D, the levers to incline or tilt the same, .for the purposeset forth, the u shaped hanger I, having the rollers K at the upper endsof its vertical arms bearing on the bar D and suspending the hangertherefrom, the gate H, pivoted to the central portion of the hanger andsuspended therefrom, and the keepers b, secured to the gate andembracing the lower corners of the hanger to limit the oscillationof thegate on the pivot, substantially as described.

In testimony that I claim the foregoing as my own I have hereto affixedmy signature in presence of two witnesses' CLEVELAND P. NILES.

